Overview

This listing is for the STEP_RP2350B core board, built around the RP2350B MCU (dual-core Arm + dual-core RISC-V). It supports common peripheral buses (I2C / SPI / UART) and programmable IO (PIO), allowing flexible, high-speed peripheral interfacing.

Compared with RP2040 / RP2350A (30 IO), RP2350B provides 48 IO, enabling more peripherals and expansion. The board is designed to be compatible with the “XiaoJiaoY” FPGA board ecosystem and supports up to 36 expansion boards via connectors (depending on your expansion system).

On-board features

• 8 × single-color LEDs (LED programming practice: blink, running light, breathing, etc.)
• 2 × RGB LEDs (serial-signal control)
• 2 × 7-segment displays (0–99) driven by 2 × 74HC595
• 4 × toggle switches (state read via analog signal into RP2350B ADC)
• 4 × tactile buttons (state read via analog signal into RP2350B ADC)
• USB-C connector for power/programming

Interfaces / Specs

• MCU: RP2350B (dual-core Arm + dual-core RISC-V)
• GPIO/IO count: 48 IO
• Buses: I2C / SPI / UART
• PIO: Supported
• Dimensions: 【填写长度×宽度×高度】 mm
• Net weight: 【填写重量】 g

Options (match your Taobao variants)

• Core board only (RP2350B)
• Core board + Training expansion board
• Core board + Piano expansion board Cable option:

• USB cable included / not included

• 1 × STEP_RP2350B core board

• (Optional) USB cable depending on selection

https://www.eetree.cn/platform/4125